Boilers | Surplus Network

( 5gal bucket ) CRYO-TEK-100 Antifreeze corrosion resistant 35284

( 5gal bucket ) CRYO-TEK-100...

$125.00 USD

( 5gal bucket ) CRYO-TEK-100...

$125.00 USD

ITT McDonnell & Miller 61, 63, 64, 65, Pump Control & Low Water casting only

ITT McDonnell & Miller 61, 63, 64,...

$125.00 USD

ITT McDonnell & Miller 61, 63, 64,...

$125.00 USD

Cleaver Brooks Boiler Tube cutaway sample - rare

Cleaver Brooks Boiler Tube cutaway...

$34.50 USD

Cleaver Brooks Boiler Tube cutaway...

$34.50 USD

RIELLO 40 GS15 GAS BURNER

RIELLO 40 GS15 GAS BURNER

$551.50 USD

RIELLO 40 GS15 GAS BURNER

$551.50 USD

McDonnell & Miller 162500 Model 93M - LWCO & Pump Controller

McDonnell & Miller 162500 Model 93M -...

$1,199.99 USD

McDonnell & Miller 162500 Model 93M -...

$1,199.99 USD

RB-24E-L

$130.00 USD

$130.00 USD

Rite Boiler Natural Gas Low Pressure Steam Boiler 180 1,500,000BTU 120V 1Ph 60Hz

Rite Boiler Natural Gas Low Pressure...

$6,000.00 USD

Rite Boiler Natural Gas Low Pressure...

$6,000.00 USD

Winters TTD401 Steel Dual Scale Thermometer Tridictator 2.5”, 1/4”

Winters TTD401 Steel Dual Scale...

$14.00 USD

Winters TTD401 Steel Dual Scale...

$14.00 USD

LOCKWOOD BOILER FEED SYSTEM TYPE G 2 HP PUMP

LOCKWOOD BOILER FEED SYSTEM TYPE G ...

$3,999.99 USD

LOCKWOOD BOILER FEED SYSTEM TYPE G ...

$3,999.99 USD

Riello R40 Single Stage Operation Oil Burner 120V 60Hz 5.2A Gently USED

Riello R40 Single Stage Operation Oil...

$400.00 USD

Riello R40 Single Stage Operation Oil...

$400.00 USD

LFE10 WITHOUT BASE

LFE10 WITHOUT BASE

$400.00 AUD

LFE10 WITHOUT BASE

$400.00 AUD

McDonnell & Miller 149662 Series 67 Low Water Cut Off Steam Broilers Float Type

McDonnell & Miller 149662 Series 67...

$195.95 USD

McDonnell & Miller 149662 Series 67...

$195.95 USD

Cleaver Brooks FLX Flexible Watertube Boiler FLX 300 3000MBTU 72HP Hot Water

Cleaver Brooks FLX Flexible Watertube...

$12,500.00 USD

Cleaver Brooks FLX Flexible Watertube...

$12,500.00 USD

Cleaver Brooks FLX Flexible Watertube Boiler FLX 300 3000MBTU 72HP Hot Water

Cleaver Brooks FLX Flexible Watertube...

$12,500.00 USD

Cleaver Brooks FLX Flexible Watertube...

$12,500.00 USD

White & Rodgers 767A-370 Ignitor

White & Rodgers 767A-370 Ignitor

$15.00 USD

White & Rodgers 767A-370 Ignitor

$15.00 USD

White & Rodgers 767A-361 Ignitor

White & Rodgers 767A-361 Ignitor

$15.00 USD

White & Rodgers 767A-361 Ignitor

$15.00 USD

New NOS Mcdonnell Miller flow switch 1" W/Tee Med Flo Spdt 115200 OEM FS4-3T2-1

New NOS Mcdonnell Miller flow switch...

$199.99 USD

New NOS Mcdonnell Miller flow switch...

$199.99 USD

S.I.T Controls Board 0063BM1798 FMT-914 0617W0029 FMCA-P060317

S.I.T Controls Board 0063BM1798...

$199.99 USD

S.I.T Controls Board 0063BM1798...

$199.99 USD

Pop-A-Plug P2, PS-440-S, box of 10 plugs plus brush.

Pop-A-Plug P2, PS-440-S, box of 10...

$42.00 USD

Pop-A-Plug P2, PS-440-S, box of 10...

$42.00 USD

Weil McLain McDonnell Miller 150S Low Water Cut Off Medium High Pressure

Weil McLain McDonnell Miller 150S Low...

$999.99 USD

Weil McLain McDonnell Miller 150S Low...

$999.99 USD

Hydro Smart HS115 Micro Boiler*

Hydro Smart HS115 Micro Boiler*

$1,149.99 USD

Hydro Smart HS115 Micro Boiler*

$1,149.99 USD

Garden Hose Caps, Boiler Water Heater Drain Caps, *Set of 2 w/Gaskets

Garden Hose Caps, Boiler Water Heater...

$5.49 USD

Garden Hose Caps, Boiler Water Heater...

$5.49 USD

Amtrol Automatic Air Eliminator Model 720, Operating Range 2 PSIG to 150 PSIG

Amtrol Automatic Air Eliminator Model...

$29.99 USD

Amtrol Automatic Air Eliminator Model...

$29.99 USD

McDonnel & Miller Guard Dog Low Water Cut Off For Hot Water Boilers120 VAC

McDonnel & Miller Guard Dog Low Water...

$29.99 USD

McDonnel & Miller Guard Dog Low Water...

$29.99 USD

Hurst Series 500 Firetube Boiler 100HP 500 SQ FT Heating Surface MFD 2005 Used

Hurst Series 500 Firetube Boiler...

$29,000.00 USD

Hurst Series 500 Firetube Boiler...

$29,000.00 USD

Hurst Series 500 Firetube Boiler 100HP 500 SQ FT Heating Surface MFD 2005 Used

Hurst Series 500 Firetube Boiler...

$29,000.00 USD

Hurst Series 500 Firetube Boiler...

$29,000.00 USD

VS820A1013 Nat. Honeywell VS820A Powerpile Pool Heater Furnace Gas Valve NEW!

VS820A1013 Nat. Honeywell VS820A...

$666.85 USD

VS820A1013 Nat. Honeywell VS820A...

$666.85 USD

McDonnell & Miller No. 67 Low Water Cut-Off Limit Control NEW OLD STOCK

McDonnell & Miller No. 67 Low Water...

$180.00 USD

McDonnell & Miller No. 67 Low Water...

$180.00 USD

MCDONNELL & MILLER LWCO 47-2 , 47 Upper and Lower Quick Hookup SA259-24 SA159-24

MCDONNELL & MILLER LWCO 47-2 , 47...

$225.00 USD

MCDONNELL & MILLER LWCO 47-2 , 47...

$225.00 USD

Sid Harvey McDonnell & Miller 149662 Series 67 Low Water Cut Off

Sid Harvey McDonnell & Miller 149662...

$129.95 USD

Sid Harvey McDonnell & Miller 149662...

$129.95 USD

CS591A1004 Honeywell Powerpile Safety Switch

CS591A1004 Honeywell Powerpile Safety...

$129.95 USD

CS591A1004 Honeywell Powerpile Safety...

$129.95 USD

Armstrong 30A4 Float & Thermostatic Steam Trap, 1" NPT, factory PN# D500141

Armstrong 30A4 Float & Thermostatic...

$280.00 USD

Armstrong 30A4 Float & Thermostatic...

$280.00 USD

Mcdonald & Miller Low Water Cut Off Series 69 Model 155500

Mcdonald & Miller Low Water Cut Off...

$200.00 USD

Mcdonald & Miller Low Water Cut Off...

$200.00 USD

raypak model 725B controllers

raypak model 725B controllers

$200.00 USD

raypak model 725B controllers

$200.00 USD

WALCHEM WBL400-1N5U BOILER CONTROLLER FOR CLEAVER BROOKS

WALCHEM WBL400-1N5U BOILER CONTROLLER...

$749.99 USD

WALCHEM WBL400-1N5U BOILER CONTROLLER...

$749.99 USD

Non-Toxic Antifreeze Hydronic Heating & Cooling HVAC Supplies -100* 5 Gal Bucket

Non-Toxic Antifreeze Hydronic Heating...

$189.00 USD

Non-Toxic Antifreeze Hydronic Heating...

$189.00 USD

McDonnell & Miller Series 67 Low Water Cut Off Steam Broilers Float Type

McDonnell & Miller Series 67 Low...

$189.00 USD

McDonnell & Miller Series 67 Low...

$189.00 USD

Beckett CG4 gas conversion & air tube (for oil boilers) no more buying oil

Beckett CG4 gas conversion & air tube...

$800.00 USD

Beckett CG4 gas conversion & air tube...

$800.00 USD

SPIRAX CARCO CONDENSATE PUMP BOILER TANK .75 HP 3 Available

SPIRAX CARCO CONDENSATE PUMP BOILER...

$1,650.00 USD

SPIRAX CARCO CONDENSATE PUMP BOILER...

$1,650.00 USD

Mcdonnell low water cut off 24v

Mcdonnell low water cut off 24v

$80.00 USD

Mcdonnell low water cut off 24v

$80.00 USD

McDONNELL MILLER LOW WATER CUT OFF No 67,,,,,, open box missing part estate item

McDONNELL MILLER LOW WATER CUT OFF No...

$175.00 USD

McDONNELL MILLER LOW WATER CUT OFF No...

$175.00 USD

New! Thrush Air Eliminator Model 720, Operating Range 2 PSIG to 150 PSIG 720-1

New! Thrush Air Eliminator Model 720,...

$175.00 USD

New! Thrush Air Eliminator Model 720,...

$175.00 USD

Laar

Laar's Pennant 750K BTU Hydronic gas...

$4,000.00 USD

Laar's Pennant 750K BTU Hydronic gas...

$4,000.00 USD

23 piece Universal Residential & Light Commercial Oil Burner Coupling Repair Kit

23 piece Universal Residential &...

$40.00 USD

23 piece Universal Residential &...

$40.00 USD

McDonnel & Miller RB-122E Low Water Cutoff Control Board

McDonnel & Miller RB-122E Low Water...

$40.00 USD

McDonnel & Miller RB-122E Low Water...

$40.00 USD

Argus Vision Boiler Controller-With All Pigtails- Never Used

Argus Vision Boiler Controller-With...

$150.00 USD

Argus Vision Boiler Controller-With...

$150.00 USD

Shizuoka VAL 6 Radiant Heater Oil Burner Shizuoka Seika

Shizuoka VAL 6 Radiant Heater Oil...

$595.50 USD

Shizuoka VAL 6 Radiant Heater Oil...

$595.50 USD

Float type McDonnell and Miller 67 Low Water Cut-Off

Float type McDonnell and Miller 67...

$120.00 USD

Float type McDonnell and Miller 67...

$120.00 USD

2 1/2" Butterfly Valve

2 1/2" Butterfly Valve

$120.00 USD

2 1/2" Butterfly Valve

$120.00 USD

WEIL-MCLAIN 80 Series Boiler Sections - 315-700-100, 315-700-110, 315-700-120

WEIL-MCLAIN 80 Series Boiler Sections...

$1,299.99 USD

WEIL-MCLAIN 80 Series Boiler Sections...

$1,299.99 USD

McDonnell & Miller 150S-MHD Boiler Feed Pump Control Low Water Cutoff

McDonnell & Miller 150S-MHD Boiler...

$750.00 USD

McDonnell & Miller 150S-MHD Boiler...

$750.00 USD

Magic Aire Horizontal Uncased Hydronic Fan Coil Unit CHW Series 40-3/8x 38x 36"

Magic Aire Horizontal Uncased...

$750.00 USD

Magic Aire Horizontal Uncased...

$750.00 USD

BOILER DONLEE TECHNOLOGIES INC. 500 HP

BOILER DONLEE TECHNOLOGIES INC. 500 HP

$25,000.00 USD

BOILER DONLEE TECHNOLOGIES INC. 500 HP

$25,000.00 USD

HURST FIRETUBE BOILER 10HP_UNKNOWN SERIES_UNIQUE & HARD-TO-FIND_4SERIOUS BUYER!~

HURST FIRETUBE BOILER 10HP_UNKNOWN...

$25,000.00 USD

HURST FIRETUBE BOILER 10HP_UNKNOWN...

$25,000.00 USD

LES 15HP Low Pressure Boiler in Excellent Condition

LES 15HP Low Pressure Boiler in...

$25,000.00 USD

LES 15HP Low Pressure Boiler in...

$25,000.00 USD

McDONNELL & MILLER # 6667 LOW WATER CUT-OFF

McDONNELL & MILLER # 6667 LOW WATER ...

$370.00 USD

McDONNELL & MILLER # 6667 LOW WATER ...

$370.00 USD

McDonnell Miller No. 2 Switch

McDonnell Miller No. 2 Switch

$109.79 USD

McDonnell Miller No. 2 Switch

$109.79 USD

NEW MCDONNELL & MILLER model 155500 469 LOW WATER CUT-OFF For Steam Boilers

NEW MCDONNELL & MILLER model 155500...

$299.99 USD

NEW MCDONNELL & MILLER model 155500...

$299.99 USD

NOS Dayton 5K501 Oil Burner Motor, 1/6 HP, 115 V, 1725 RPM, 1/2" Dia. Shaft

NOS Dayton 5K501 Oil Burner Motor,...

$197.00 USD

NOS Dayton 5K501 Oil Burner Motor,...

$197.00 USD

McDonnell & Miller Series 67 Low Water Cut Off

McDonnell & Miller Series 67 Low...

$109.00 USD

McDonnell & Miller Series 67 Low...

$109.00 USD

Winters TTD401 Steel Dual Scale Thermometer with 2.5" Dial 0-75 PSI 70-320 °F

Winters TTD401 Steel Dual Scale...

$32.00 USD

Winters TTD401 Steel Dual Scale...

$32.00 USD

Cleaver Brooks FLX Watertube Boiler FLX 250 60HP 160PSI Hot Water Nat Gas Burner

Cleaver Brooks FLX Watertube Boiler...

$11,500.00 USD

Cleaver Brooks FLX Watertube Boiler...

$11,500.00 USD

CLEAVER BROOKS FIREYE NXTSD104 TOUCH SCREEN HMI BOILER BURNER MANAGEMENT SYSTEM

CLEAVER BROOKS FIREYE NXTSD104 TOUCH...

$9,999.99 USD

CLEAVER BROOKS FIREYE NXTSD104 TOUCH...

$9,999.99 USD

Cleaver Brooks ProFire dual fuel burner for 222 BHP Flex tube Boiler

Cleaver Brooks ProFire dual fuel...

$10,000.00 USD

Cleaver Brooks ProFire dual fuel...

$10,000.00 USD

Fulton Pulse Combustion Boiler PHW-2000 2000kBTU In Nat. Gas MFD: 2007 Used

Fulton Pulse Combustion Boiler...

$10,000.00 USD

Fulton Pulse Combustion Boiler...

$10,000.00 USD

767, Float Type Low Water Cut-off w/ Built-in Blow-Down Valve (Steam)

767, Float Type Low Water Cut-off w/...

$550.00 USD

767, Float Type Low Water Cut-off w/...

$550.00 USD

Amtrol Automatic Air Eliminator Model 720, Operating Range 2 PSIG to 150 PSIG

Amtrol Automatic Air Eliminator Model...

$63.17 USD

Amtrol Automatic Air Eliminator Model...

$63.17 USD

Nicholson FTN-C5G9A 1-1/2" Float Thermostatic Steam Trap TMA 353F Cast Iron

Nicholson FTN-C5G9A 1-1/2" Float...

$275.00 USD

Nicholson FTN-C5G9A 1-1/2" Float...

$275.00 USD

Part of MCDONNELL & MILLER No. 63 Low Water Cut Off 1” 50 PSI boiler

Part of MCDONNELL & MILLER No. 63 Low...

$699.00 USD

Part of MCDONNELL & MILLER No. 63 Low...

$699.00 USD

ALCO CONTROLS 230RA9S7T GENERAL PURPOSE VALVE

ALCO CONTROLS 230RA9S7T GENERAL...

$45.00 USD

ALCO CONTROLS 230RA9S7T GENERAL...

$45.00 USD

VINTAGE NOS HOFFMAN 18C 3/4 x 3/4 ANGLE PATTERN THERMOSTAT TRAP 33-20299

VINTAGE NOS HOFFMAN 18C 3/4 x 3/4...

$45.00 USD

VINTAGE NOS HOFFMAN 18C 3/4 x 3/4...

$45.00 USD

McDonnell & Miller 149662 Series 67 Low Water Cut Off Steam Boilers Float Type

McDonnell & Miller 149662 Series 67...

$435.00 USD

McDonnell & Miller 149662 Series 67...

$435.00 USD

ARZEL ZONING DAMPERS 6 - 8" AND 2- 7"

ARZEL ZONING DAMPERS 6 - 8" AND 2- 7"

$500.00 USD

ARZEL ZONING DAMPERS 6 - 8" AND 2- 7"

$500.00 USD

NOS Monarch 4" Combustion Head Model No. G-81-C for 3-7/8" To 4" I.D. Tubes

NOS Monarch 4" Combustion Head Model...

$94.99 USD

NOS Monarch 4" Combustion Head Model...

$94.99 USD

Raypak Raypak MVB 008921 F Time Delay Contactor 5 Second

Raypak Raypak MVB 008921 F Time Delay...

$65.00 USD

Raypak Raypak MVB 008921 F Time Delay...

$65.00 USD

NORTH AMERICAN MFG AB4121-8.4-C11-UV Burner Housing NEW!

NORTH AMERICAN MFG AB4121-8.4-C11-UV...

$1,575.00 USD

NORTH AMERICAN MFG AB4121-8.4-C11-UV...

$1,575.00 USD

argus vision boiler sequencer

argus vision boiler sequencer

$49.95 USD

argus vision boiler sequencer

$49.95 USD

Cleaver Brooks Boiler Plate Handhole 2-3/4x3-1/2 Obround/Curve b4

Cleaver Brooks Boiler Plate Handhole...

$104.99 USD

Cleaver Brooks Boiler Plate Handhole...

$104.99 USD

Oil Burner Tune Up Kit 0.85 Gallon 80° B Solid Nozzle Filter And A Pump Screen

Oil Burner Tune Up Kit 0.85 Gallon...

$17.75 USD

Oil Burner Tune Up Kit 0.85 Gallon...

$17.75 USD

Oil Burner Tune Up Kit 0.75 Gallon 80° B Solid Nozzle Filter And A Pump Screen

Oil Burner Tune Up Kit 0.75 Gallon...

$17.75 USD

Oil Burner Tune Up Kit 0.75 Gallon...

$17.75 USD

Nice New Corporate Surplus Plenty / Velan Forged Steam Trap Type TSF

Nice New Corporate Surplus Plenty /...

$19.99 USD

Nice New Corporate Surplus Plenty /...

$19.99 USD

(4) 1" Brass Terminator Unions With Manual Air Vent MNPT to Sweat - Hydronic NOS

(4) 1" Brass Terminator Unions With...

$49.50 USD

(4) 1" Brass Terminator Unions With...

$49.50 USD

Fairway Oil-Fired Cast Iron Boilers Owners Guide Schematics Installation 1963?

Fairway Oil-Fired Cast Iron Boilers...

$13.25 USD

Fairway Oil-Fired Cast Iron Boilers...

$13.25 USD

Suction Diffuser

Suction Diffuser

$1,700.00 USD

Suction Diffuser

$1,700.00 USD

Cryo-Tek 5 Gal. Non-Toxic Corrosion-Resistant Antifreeze

Cryo-Tek 5 Gal. Non-Toxic...

$230.99 USD

Cryo-Tek 5 Gal. Non-Toxic...

$230.99 USD

Weil-Mclain 313-300-110 Boiler Regular Intermediate Section SC LGB INT 3315 HPS1

Weil-Mclain 313-300-110 Boiler...

$651.60 USD

Weil-Mclain 313-300-110 Boiler...

$651.60 USD

Aerco Benchmark 2.0 Boiler BMK2.0 BTU 2000MBH Input 1720MBH Output 27-Gallon

Aerco Benchmark 2.0 Boiler BMK2.0 BTU...

$8,000.00 USD

Aerco Benchmark 2.0 Boiler BMK2.0 BTU...

$8,000.00 USD

Aerco Benchmark 2.0 Boiler BMK2.0 BTU 2000MBH Input 1720MBH Output 27-Gallon

Aerco Benchmark 2.0 Boiler BMK2.0 BTU...

$8,000.00 USD

Aerco Benchmark 2.0 Boiler BMK2.0 BTU...

$8,000.00 USD

Amtrol Automatic Air Eliminator Model 720, Operating Range 2 PSIG to 150 PSIG

Amtrol Automatic Air Eliminator Model...

$39.99 USD

Amtrol Automatic Air Eliminator Model...

$39.99 USD

Oil Burner Tune Up Kit 1.25 Gallon 80° B Solid Nozzle Filter And A Pump Screen

Oil Burner Tune Up Kit 1.25 Gallon...

$19.95 USD

Oil Burner Tune Up Kit 1.25 Gallon...

$19.95 USD

Munchkin 7250-325 vision indirect water temperature sensor Thermistor

Munchkin 7250-325 vision indirect...

$59.11 USD

Munchkin 7250-325 vision indirect...

$59.11 USD

Oil Burner Tune Up Kit 2.25 Gallon 80° B Solid Nozzle Filter And A Pump Screen

Oil Burner Tune Up Kit 2.25 Gallon...

$22.25 USD

Oil Burner Tune Up Kit 2.25 Gallon...

$22.25 USD

McDonnell & Miller 149400 Series 67 Low Water Cut Off Steam Broilers Float Type

McDonnell & Miller 149400 Series 67...

$289.88 USD

McDonnell & Miller 149400 Series 67...

$289.88 USD

TACO 006-BC-1IFC BRONZE CARTRIDGE CIRCULATOR PUMP - Potable 1/2" W/Intgflowchck

TACO 006-BC-1IFC BRONZE CARTRIDGE...

$140.00 USD

TACO 006-BC-1IFC BRONZE CARTRIDGE...

$140.00 USD

Bell and Gossett Circulation Pump Model LD3

Bell and Gossett Circulation Pump...

$1,370.00 USD

Bell and Gossett Circulation Pump...

$1,370.00 USD

C-R206A-EN-C BS6300 901980 35612142 13177 Raypak boiler touch panel

C-R206A-EN-C BS6300 901980 35612142...

$199.00 USD

C-R206A-EN-C BS6300 901980 35612142...

$199.00 USD

MCDONNELL & MILLER 93-7B-HD FLOAT SWITCH, BOILER LOW WATER CUT OFF AUTO RESET

MCDONNELL & MILLER 93-7B-HD FLOAT...

$1,280.00 USD

MCDONNELL & MILLER 93-7B-HD FLOAT...

$1,280.00 USD

DPW-120B 275841101742 Quietside Boiler Control Board

DPW-120B 275841101742 Quietside...

$399.00 USD

DPW-120B 275841101742 Quietside...

$399.00 USD

Honeywell VS820A LP Powerpile Pool Heater Furnace Propane Gas Valve NEW!

Honeywell VS820A LP Powerpile Pool...

$664.70 USD

Honeywell VS820A LP Powerpile Pool...

$664.70 USD

McDonnell & Miller 149662 Series 67 Low Water Cut Off Steam Boilers Float Type

McDonnell & Miller 149662 Series 67...

$425.00 USD

McDonnell & Miller 149662 Series 67...

$425.00 USD